Caterpillar Cat 426C Backhoe Loader (Prefix 1ER) Service Repair Manual (1ER00001-00863).pdf

Service Repair Manual
Models
426C Backhoe Loader

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Product: BACKHOE LOADER
Model: 426C BACKHOE LOADER 1ER
Configuration: 426C Backhoe Loader Center Pivot, Single Tilt 1ER00001-00863 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
3054 Engine for Caterpillar Built Machines
Media Number -SENR6241-13 Publication Date -01/08/2008 Date Updated -04/08/2008
i01598347
Exhaust Manifold - Remove and Install - Type 2 Engines and
7BJ Engines
SMCS - 1059-010
Removal Procedure
Start By:
A. Remove the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove".
B. Remove the air inlet manifold. Refer to Disassembly and Assembly, "Air Inlet Manifold -
Remove and Install".
Note: For a complete description of Type 1 and Type 2 Engines, refer to the Disassembly and
Assembly, "Engine Design" topic.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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426C Backhoe Loader Center Pivot, Single Tilt 1ER00001-00863 (MACHINE) POW...
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Illustration 1 g00557287
Typical example
1. Remove exhaust manifold nuts or bolts (1) in reverse order of the numbered sequence.
2. Remove exhaust manifold (2) from the engine.
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Typical example
3. Remove exhaust manifold gaskets (3) from the engine.
4. Remove old sealant from stud threads.
Installation Procedure
NOTICE
Typical example
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1. Inspect the condition of the gaskets. If the gaskets are damaged, use new parts for
replacement. Install exhaust manifold gaskets (3) on the cylinder head. Apply 4C-9507
Retaining Compound to the stud threads.
Typical example
NOTICE
Damage to the exhaust manifold can occur if the exhaust manifold is
not aligned and tightened correctly.
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2. Install exhaust manifold (2) on the cylinder head.
Note: Some of the exhaust manifolds have large clearance holes for the bolts. If a new
exhaust manifold is installed ensure that the 148-7132 Ferrule mountings that are supplied
with the exhaust manifold are installed.
3. Install exhaust manifold nuts or bolts (1). Tighten the exhaust manifold nuts or bolts in the
numerical sequence to a torque of 44 N·m (33 lb ft).
End By:
a. Install the air inlet manifold. Refer to Disassembly and Assembly, "Air Inlet Manifold -
Remove and Install".
b. Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Thu Dec 19 11:42:57 UTC+0800 2019
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i01068659
Exhaust Manifold - Remove and Install - Type 1 Engines and
9RM Engines
SMCS - 1059-010
Removal Procedure
Start By:
A. Remove the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove".
Note: For a complete description of Type 1 and Type 2 Engines, refer to the Disassembly and
Assembly, "Engine Design" topic.
NOTICE
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Typical example
1. Remove exhaust manifold nuts (1) .
2. Remove exhaust manifold (2) and the gasket.
NOTICE
Typical example
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1. Inspect the condition of the gasket. Replace the gasket, if necessary.
2. Install the gasket and exhaust manifold (2) .
3. Install exhaust manifold nuts (1). Tighten the plated nuts to a torque of 44 N·m (32 lb ft).
Tighten the nuts that are not plated to a torque of 50 N·m (37 lb ft).
End By: Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".
Thu Dec 19 11:43:52 UTC+0800 2019
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i02870246
Inlet Manifold - Remove - Type 2 Engines and 7BJ Engines
SMCS - 1058-011
Removal Procedure
Note: For a complete description of Type 1 and Type 2 engines, refer to Disassembly and
Assembly, "Engine Design".
NOTICE
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
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Typical example
1. Disconnect tube (1) from the air inlet heater.
2. Loosen hose clamps (3) and slide the hose toward the turbocharger.
3. Remove four bolts (2) and remove elbow (4) from the air inlet manifold.
Typical example
4. Remove bolts (5) that fasten air inlet manifold (6) to the engine.
5. Remove air inlet manifold (6) .
Thu Dec 19 11:44:48 UTC+0800 2019
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Shutdown SIS
Previous Screen
i02870245
Inlet Manifold - Remove - Type 1 Engines and 9RM Engines
SMCS - 1058-011
Removal Procedure
NOTICE
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
1/3
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Typical example
Typical example
1. Disconnect electrical connector (5) for the air inlet heater.
2. Disconnect fuel line (6) to the air inlet heater.
3. Remove two bolts (7) that hold the bracket for fuel line (6) in position.
4. Loosen two hose clamps (8) and slide hose (9) toward the turbocharger.
5. Remove four bolts (3) in order to remove elbow (2) and gasket (4) .
6. Disconnect boost pressure hose (10) .
7. Remove bolts (12) that hold the turbocharger support to air inlet manifold (14) .
8. Remove bolts (13) that hold air inlet manifold (14) to the cylinder head.
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9. Remove air inlet manifold (14) and gaskets (11) .
10. Remove seal (1) .
Thu Dec 19 11:45:44 UTC+0800 2019
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Shutdown SIS
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i02870254
Inlet Manifold - Install - Type 1 Engines and 9RM Engines
SMCS - 1058-012
NOTICE
1. Inspect the gaskets for wear or damage. If the gaskets are worn or damaged, use new parts
for replacement.
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Typical example
Typical example
2. Install seal (1) on the engine.
3. Position gaskets (11) and air inlet manifold (14) on the engine.
Note: Ensure that the front gaskets and the rear gaskets are installed with the notch at the
top left side. The center gasket can be installed in either direction.
4. Install bolts (13) .
5. Position the turbocharger support on air inlet manifold (14) and install bolts (12) .
6. Connect boost pressure hose (10) .
7. Install gasket (4) and elbow (2) with four bolts (3) .
8. Slide hose (9) in position and tighten hose clamps (8) .
9. Place the bracket for fuel line (6) in position and install two bolts (7) .
10. Connect fuel line (6) to the air inlet heater.
11. Connect electrical connector (5) for the air inlet heater.
Thu Dec 19 11:46:40 UTC+0800 2019
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Shutdown SIS
Previous Screen
i02870255
Inlet Manifold - Install - Type 2 Engines and 7BJ Engines
SMCS - 1058-012
NOTICE
1. Inspect the gaskets for wear or damage. If the gaskets are worn or damaged, use new parts
for replacement.
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Typical example
2. Install the gasket and air inlet manifold (6) with bolts (5) . Tighten bolts (5) to a torque of 33
N·m (24 lb ft).
Typical example
3. Put the gasket and elbow (4) in position on the air inlet manifold.
4. Install four bolts (2) .
5. Slide the hose into position and tighten hose clamps (3) .
6. Connect tube (1) to the air inlet heater.
Thu Dec 19 11:47:35 UTC+0800 2019
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Caterpillar Cat 426C Backhoe Loader (Prefix 1ER) Service Repair Manual (1ER00001-00863).pdf

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